array(1) {
  ["field_patent"]=>
  array(1) {
    [0]=>
    string(9) "機械系"
  }
}

array(1) {
  ["field_patent_2"]=>
  string(9) "機械系"
}
int(5)

array(2) {
  ["relation"]=>
  string(3) "AND"
  [0]=>
  array(2) {
    ["relation"]=>
    string(2) "OR"
    [0]=>
    array(3) {
      ["key"]=>
      string(12) "field_patent"
      ["value"]=>
      string(9) "機械系"
      ["compare"]=>
      string(4) "LIKE"
    }
  }
}

array(4) {
  ["post_type"]=>
  string(14) "bennrishi_jobs"
  ["order"]=>
  string(4) "DESC"
  ["meta_query"]=>
  array(2) {
    ["relation"]=>
    string(3) "AND"
    [0]=>
    array(2) {
      ["relation"]=>
      string(2) "OR"
      [0]=>
      array(3) {
        ["key"]=>
        string(12) "field_patent"
        ["value"]=>
        string(9) "機械系"
        ["compare"]=>
        string(4) "LIKE"
      }
    }
  }
  ["paged"]=>
  int(5)
}